Improvement in movable vise-jaws



' UNITED STATES PATENT GEFrcE.

BENJAMIN F. STEPHENS, OF BROOKLYN, NEW YORK.

IMPRCVEVMENT IN MOVABLE VIS-JAWS.

Specification forming part of Letters Patent No. 156.386. dated October 27, 1874; application led April 9, 1814.

To all lwhom it may concern s Be it known that I, BENJAMIN F. STE- PHIENS, of Brooklyn, in the county of Kings and State of New York, have invented an Improvement in Movable Vise-.Iaws for Coach- Makers, Wood-Workers, &c., of which the following is a specification:

- Vise-jaws have heretofore been covered by movable caps, but they were not adapted, either as to shape or extent of bearing-surface, to the use of Wood-workers or harness or coach makers.

My present invention relates to a vise-cap that is adapted to being attached to the jaws of an ordinary parallel vise, and presents an extent of surface sufficient for holding Wood, leather, or other comparatively soft material Without injury.

In the drawing, Figure 1 is a side view of the removable jaws. Fig. 2 is a vertical section of the same, and Fig. 3 is a horizontal section.

The jaws are made of metal face-plates a a',

with inclined jaw portions b b and end lian gesc c. The size of these movable jaw pieces or caps is such that the vise-jaw can occupy the space between the end anges c or c', and beneath the jaw portion b or b', and the anglev between b and a is such that the movable caps will stand sufficiently above the ordinary visejaws to give the facility required by men working in articles of the before-mentioned character. At the ends of the vise-jaws are holes or recesses into which the ends ot' the screws@ pass, to secure the jaw-caps in place and prevent looseness. The movable jaws arefurther atta-ched by the clamping-screws l Z passing Athrough ears m m and grasping the stock or body o of the vise below the jaw, so as to hold the same firmly at these points.

In order to prevent the pressure upon the face of the movable jaw or cap rocking the same and throwing the face-plates a a out of a position parallel to each other, I make use of the adjusting-screws o ol that pass through the plates c and reach the stock t of the visejaw, as illustrated in Figs. 2 and 3. These screws should be countersunk so as not to project beyond the face, and they may either pass into screw-holes in the stocks with intervening washersor be screwed into the jaws, as shown.

By this construction the face-plates can be adjusted and held securely in position upon the vise-jaws, and they present a sufliciently large surface for clamping wood and other material without injuring the same, and these jaws can be easily detached, if the ordinary vise has to be used for metal work.

The vise with these movable jaws may be used for holding metal or other material while being iiled or otherwise Worked.

If desired, faces of wood or leather may be I attached to the plates a a. lhave shown one such face at r. The screws s employed for attaching such face r should be fitted into countersunk holes in a and a', so that when the wood or leather face is not used the said screws may be screwed into the said plates a a Hush with the surface.

I claim as my inventionl. The movable vise-cap made with the jaw portion b, face c, end pieces Yo, inclosing the space for the jaw of the vise and provided with attaching-screws i, substantially as set forth.

2. The movable vise-cap made with the faceplate a, jaw-piece b, end pieces c, lugs m, and clamping-screw l, substantially as speciiied.

3. The movable vise-jaws adapted to clamping wood, leather, and similar material, made with face-plates a a extending above and below the ordinary vise-jaws, and provided with the jaw-pieces b b and end pieces c c and clamping-screws, substantially as set forth.

4. The adjusting-screws o o passing through the movable vise-jaws and acting upon the stocks of the parallel vise-jaws, to support the said movable jaws iu a position parallel to each other, substantiallyas specified.

Signed by me this 6th dayfof April, A. D.

BENJ. F. STEPHENS. Witnesses:

GEo. T. PINGKNEY, CHAs. H. SMITH. 

